kernel-ark/fs
Linus Torvalds 94f2f14234 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull user namespace and namespace infrastructure changes from Eric W Biederman:
 "This set of changes starts with a few small enhnacements to the user
  namespace.  reboot support, allowing more arbitrary mappings, and
  support for mounting devpts, ramfs, tmpfs, and mqueuefs as just the
  user namespace root.

  I do my best to document that if you care about limiting your
  unprivileged users that when you have the user namespace support
  enabled you will need to enable memory control groups.

  There is a minor bug fix to prevent overflowing the stack if someone
  creates way too many user namespaces.

  The bulk of the changes are a continuation of the kuid/kgid push down
  work through the filesystems.  These changes make using uids and gids
  typesafe which ensures that these filesystems are safe to use when
  multiple user namespaces are in use.  The filesystems converted for
  3.9 are ceph, 9p, afs, ocfs2, gfs2, ncpfs, nfs, nfsd, and cifs.  The
  changes for these filesystems were a little more involved so I split
  the changes into smaller hopefully obviously correct changes.

  XFS is the only filesystem that remains.  I was hoping I could get
  that in this release so that user namespace support would be enabled
  with an allyesconfig or an allmodconfig but it looks like the xfs
  changes need another couple of days before it they are ready."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (93 commits)
  cifs: Enable building with user namespaces enabled.
  cifs: Convert struct cifs_ses to use a kuid_t and a kgid_t
  cifs: Convert struct cifs_sb_info to use kuids and kgids
  cifs: Modify struct smb_vol to use kuids and kgids
  cifs: Convert struct cifsFileInfo to use a kuid
  cifs: Convert struct cifs_fattr to use kuid and kgids
  cifs: Convert struct tcon_link to use a kuid.
  cifs: Modify struct cifs_unix_set_info_args to hold a kuid_t and a kgid_t
  cifs: Convert from a kuid before printing current_fsuid
  cifs: Use kuids and kgids SID to uid/gid mapping
  cifs: Pass GLOBAL_ROOT_UID and GLOBAL_ROOT_GID to keyring_alloc
  cifs: Use BUILD_BUG_ON to validate uids and gids are the same size
  cifs: Override unmappable incoming uids and gids
  nfsd: Enable building with user namespaces enabled.
  nfsd: Properly compare and initialize kuids and kgids
  nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids
  nfsd: Modify nfsd4_cb_sec to use kuids and kgids
  nfsd: Handle kuids and kgids in the nfs4acl to posix_acl conversion
  nfsd: Convert nfsxdr to use kuids and kgids
  nfsd: Convert nfs3xdr to use kuids and kgids
  ...
2013-02-25 16:00:49 -08:00
..
9p Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
adfs fs/adfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
affs fs/affs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
afs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
autofs4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2012-12-17 15:44:47 -08:00
befs fs/befs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
bfs fs/bfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:04 -08:00
btrfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
cachefiles FS-Cache: Mark cancellation of in-progress operation 2012-12-20 22:34:00 +00:00
ceph Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
cifs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
coda coda: Cache permisions in struct coda_inode_info in a kuid_t. 2013-02-13 06:00:54 -08:00
configfs configfs: move the dereference below the NULL test 2013-02-21 17:22:19 -08:00
cramfs
debugfs Merge 3.9-rc4 into driver-core-next 2013-01-17 19:48:18 -08:00
devpts userns: Allow the userns root to mount of devpts 2013-01-26 22:22:21 -08:00
dlm dlm for 3.9 2013-02-21 09:25:23 -08:00
ecryptfs fs/ecryptfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-11 11:39:04 -08:00
efs fs/efs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:05 -08:00
exofs exofs: don't leak io_state and pages on read error 2012-12-14 12:17:32 +02:00
exportfs Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux 2012-12-20 14:04:11 -08:00
ext2 ext2: fix return values on parse_options() failure 2012-10-09 23:23:53 +02:00
ext3 block: optionally snapshot page contents to provide stable pages during write 2013-02-21 17:22:20 -08:00
ext4 mm: only enforce stable page writes if the backing device requires it 2013-02-21 17:22:19 -08:00
f2fs f2fs: use _safe() version of list_for_each 2013-01-22 10:49:00 +09:00
fat fat: fix incorrect function comment 2012-12-20 17:40:20 -08:00
freevxfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
fscache FS-Cache: Clear remaining page count on retrieval cancellation 2012-12-20 22:35:15 +00:00
fuse fuse: allow control of adaptive readdirplus use 2013-02-07 14:25:44 +01:00
gfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
hfs fs/hfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:05 -08:00
hfsplus Merge branch 'akpm' (Andrew's patch-bomb) 2012-12-20 20:00:43 -08:00
hostfs Merge branch 'for-linus-37rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml 2012-10-10 11:15:20 +09:00
hpfs Merge branch 'master' into for-next 2013-01-29 10:48:30 +01:00
hppfs pidns: Use task_active_pid_ns where appropriate 2012-11-19 05:59:09 -08:00
hugetlbfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
isofs tmpfs,ceph,gfs2,isofs,reiserfs,xfs: fix fh_len checking 2012-10-09 23:33:55 -04:00
jbd jbd: don't wake kjournald unnecessarily 2013-01-14 22:50:45 +01:00
jbd2 Various bug fixes for ext4. Perhaps the most serious bug fixed is one 2013-01-02 09:57:34 -08:00
jffs2 fs/jffs2: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:05 -08:00
jfs Merge branch 'master' into for-next 2013-01-29 10:48:30 +01:00
lockd NLM: Ensure that we resend all pending blocking locks after a reclaim 2013-02-19 12:18:27 -05:00
logfs fs/logfs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:05 -08:00
minix minix: drop vmtruncate 2012-12-20 18:40:53 -05:00
ncpfs ncpfs: Support interacting with multiple user namespaces 2013-02-13 06:15:13 -08:00
nfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
nfs_common nfs_common: Update the translation between nfsv3 acls linux posix acls 2013-02-13 06:15:14 -08:00
nfsd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
nilfs2 Merge branch 'akpm' (incoming from Andrew) 2013-02-21 17:38:49 -08:00
nls
notify inotify: remove broken mask checks causing unmount to be EINVAL 2013-02-21 17:22:16 -08:00
ntfs ntfs: drop vmtruncate 2012-12-20 18:40:55 -05:00
ocfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-02-25 16:00:49 -08:00
omfs omfs: drop vmtruncate 2012-12-20 14:00:01 -05:00
openpromfs fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
proc swap: make each swap partition have one address_space 2013-02-23 17:50:17 -08:00
pstore A few fixes to reduce places where pstore might hang 2013-02-21 09:38:18 -08:00
qnx4 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
qnx6 treewide: Fix typo in various drivers 2013-01-09 11:43:32 +01:00
quota quota: Use the pre-processor to compile out quotactl_cmd_write when !CONFIG_BLOCK 2012-12-13 16:33:24 +01:00
ramfs userns: Allow the userns root to mount ramfs. 2013-01-26 22:22:38 -08:00
reiserfs reiserfs: drop vmtruncate 2012-12-20 14:00:01 -05:00
romfs fs: push rcu_barrier() from deactivate_locked_super() to filesystems 2012-10-02 21:35:55 -04:00
squashfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
sysfs Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sysv sysv: drop vmtruncate 2012-12-20 14:00:01 -05:00
ubifs ubifs: wait for page writeback to provide stable pages 2013-02-21 17:22:20 -08:00
udf UDF: Fix a null pointer dereference in udf_sb_free_partitions 2013-01-14 22:53:47 +01:00
ufs fs/ufs: remove depends on CONFIG_EXPERIMENTAL 2013-01-21 14:39:06 -08:00
xfs Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
aio.c mm: make do_mmap_pgoff return populate as a size in bytes, not as a bool 2013-02-23 17:50:11 -08:00
anon_inodes.c
attr.c userns: Allow chown and setgid preservation 2012-11-20 04:17:24 -08:00
bad_inode.c lseek: the "whence" argument is called "whence" 2012-12-17 17:15:12 -08:00
binfmt_aout.c get rid of pt_regs argument of ->load_binary() 2012-11-28 21:53:38 -05:00
binfmt_elf_fdpic.c cputime: Use accessors to read task cputime stats 2013-01-27 19:23:31 +01:00
binfmt_elf.c binfmt_elf: remove unused argument in fill_elf_header 2013-02-21 17:22:26 -08:00
binfmt_em86.c exec: use -ELOOP for max recursion depth 2012-12-17 17:15:23 -08:00
binfmt_flat.c get rid of pt_regs argument of ->load_binary() 2012-11-28 21:53:38 -05:00
binfmt_misc.c exec: do not leave bprm->interp on stack 2012-12-20 17:40:19 -08:00
binfmt_script.c exec: do not leave bprm->interp on stack 2012-12-20 17:40:19 -08:00
binfmt_som.c get rid of pt_regs argument of ->load_binary() 2012-11-28 21:53:38 -05:00
bio-integrity.c
bio.c vfs: fix: don't increase bio_slab_max if krealloc() fails 2012-10-22 22:00:26 +02:00
block_dev.c fs/block_dev.c: page cache wrongly left invalidated after revalidate_disk() 2013-02-21 17:22:16 -08:00
buffer.c fs/buffer.c: change type of max_buffer_heads to unsigned long 2013-02-23 17:50:22 -08:00
char_dev.c char_dev: pin parent kobject 2012-10-22 08:50:37 +03:00
compat_binfmt_elf.c coredump: extend core dump note section to contain file names of mapped files 2012-10-06 03:05:17 +09:00
compat_ioctl.c Merge 3.7-rc3 into tty-next 2012-10-29 09:00:57 -07:00
compat.c switch timerfd compat syscalls to COMPAT_SYSCALL_DEFINE 2013-02-03 15:09:25 -05:00
coredump.c do_coredump(): get rid of pt_regs argument 2012-11-29 00:01:25 -05:00
coredump.h coredump: update coredump-related headers 2012-10-06 03:05:15 +09:00
dcache.c vfs: d_obtain_alias() needs to use "/" as default name. 2012-12-20 18:49:10 -05:00
dcookies.c
direct-io.c direct-io: don't read inode->i_blkbits multiple times 2012-11-29 12:38:44 -08:00
drop_caches.c
eventfd.c fs, eventfd: add procfs fdinfo helper 2012-12-17 17:15:27 -08:00
eventpoll.c epoll: prevent missed events on EPOLL_CTL_MOD 2013-01-02 09:16:43 -08:00
exec.c fs/exec.c: work around icc miscompilation 2013-01-11 14:54:55 -08:00
fcntl.c Fix F_DUPFD_CLOEXEC breakage 2012-10-09 15:52:31 +09:00
fhandle.c Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux 2012-12-20 14:04:11 -08:00
fifo.c
file_table.c fs: Fix imbalance in freeze protection in mark_files_ro() 2012-12-20 13:57:36 -05:00
file.c locking: Various static lock initializer fixes 2013-02-19 08:42:45 +01:00
filesystems.c vfs: define struct filename and have getname() return it 2012-10-12 20:14:55 -04:00
fs_struct.c kill daemonize() 2012-11-28 21:49:02 -05:00
fs-writeback.c writeback: fix a typo in comment 2012-12-12 17:38:34 -08:00
generic_acl.c
inode.c mm: redefine address_space.assoc_mapping 2012-12-11 17:22:26 -08:00
internal.h writeback: put unused inodes to LRU after writeback completion 2012-11-26 17:41:24 -08:00
ioctl.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
ioprio.c
Kconfig fuse: Move CUSE Kconfig entry from fs/Kconfig into fs/fuse/Kconfig 2013-01-17 13:08:45 +01:00
Kconfig.binfmt coredump: make core dump functionality optional 2012-10-06 03:05:15 +09:00
libfs.c vfs: drop vmtruncate 2012-12-20 18:46:29 -05:00
locks.c UAPI Disintegration 2012-10-09 2012-10-09 18:35:22 -04:00
Makefile f2fs: update Kconfig and Makefile 2012-12-11 13:43:42 +09:00
mbcache.c
mount.h proc: Usable inode numbers for the namespace file descriptors. 2012-11-20 04:19:49 -08:00
mpage.c
namei.c vfs: fix renameat to retry on ESTALE errors 2012-12-20 18:50:05 -05:00
namespace.c vfs, freeze: use ACCESS_ONCE() to guard access to ->mnt_flags 2012-12-20 13:36:18 -05:00
no-block.c
open.c vfs: make fchownat retry once on ESTALE errors 2012-12-20 18:50:07 -05:00
pipe.c pipe(2) - race-free error recovery 2012-09-26 21:08:52 -04:00
pnode.c
pnode.h vfs: Only support slave subtrees across different user namespaces 2012-11-19 05:59:20 -08:00
posix_acl.c
proc_namespace.c
read_write.c sendfile: allows bypassing of notifier events 2012-12-20 17:40:21 -08:00
read_write.h compat: fs: Generic compat_sys_sendfile implementation 2012-10-02 21:35:55 -04:00
readdir.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
select.c sched/rt: Move rt specific bits into new header file 2013-02-07 20:51:08 +01:00
seq_file.c seq_file: fix new kernel-doc warnings 2013-01-10 14:35:24 -08:00
signalfd.c fs, epoll: add procfs fdinfo helper 2012-12-17 17:15:27 -08:00
splice.c tcp: fix MSG_SENDPAGE_NOTLAST logic 2013-01-06 20:58:13 -08:00
stack.c
stat.c vfs: fix readlinkat to retry on ESTALE 2012-12-20 18:50:01 -05:00
statfs.c vfs: fix user_statfs to retry once on ESTALE errors 2012-12-20 18:50:07 -05:00
super.c vfs: drop lock/unlock super 2012-10-09 23:33:39 -04:00
sync.c switch simple cases of fget_light to fdget 2012-09-26 22:20:08 -04:00
timerfd.c switch timerfd compat syscalls to COMPAT_SYSCALL_DEFINE 2013-02-03 15:09:25 -05:00
utimes.c vfs: allow utimensat() calls to retry once on an ESTALE error 2012-12-20 18:50:08 -05:00
xattr_acl.c userns: Fix posix_acl_file_xattr_userns gid conversion 2012-10-12 13:16:48 -07:00
xattr.c vfs: make lremovexattr retry once on ESTALE error 2012-12-20 18:50:11 -05:00